Supplier Page from Thermo Fisher Scientific for Sulfur in Crude Oil standard solution, Specpure:r, 1000µmg/g (0.10%)
3-Fluorobenzaldehyde, 98+% from Thermo Fisher Scientific
Ergosterol, 98% from Thermo Fisher Scientific
Esculin hydrate, 97% from Thermo Fisher Scientific
Ethylenediaminetetraacetic acid, 99%, pure from Thermo Fisher Scientific